Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Accounting Policies [Abstract]

Schedule of Inventory, Current [Table Text Block]

A summary of inventories is as follows (in thousands):

	December 31,
	2012		2011
Raw materials	$	8,198	$	16,818
Work in process		2,831		5,672
Finished goods		2,414		3,698
	$	13,443	$	26,188

Schedule Of Property Plant And Equipment Estimated Useful Lives [Table Text Block]

Depreciation is computed by the straight line method over the following estimated useful lives:

	Years
Land improvements	20 – 30
Buildings and improvements	7 – 40
Machinery and equipment:
Railroad equipment	20 – 39
Facility equipment	20 – 39
Other	5 – 7
Office furniture and equipment	3 – 10

Schedule Of Estimated Future Debt Issuance Cost Amortization [Table Text Block]

Estimated future debt issuance cost amortization as of December 31, 2012 is as follows (in thousands):

2013	$	978
2014		704
2015		8
2016		8
2017		8
Thereafter		33
Total	$	1,739